{
struct page *page = vmf->page;
struct inode *inode = file_inode(vma->vm_file);
- struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+ struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
struct dnode_of_data dn;
int err;
static inline bool need_do_checkpoint(struct inode *inode)
{
- struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+ struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
bool need_cp = false;
if (!S_ISREG(inode->i_mode) || inode->i_nlink != 1)
{
struct inode *inode = file->f_mapping->host;
struct f2fs_inode_info *fi = F2FS_I(inode);
- struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+ struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+ nid_t ino = inode->i_ino;
int ret = 0;
bool need_cp = false;
struct writeback_control wbc = {
trace_f2fs_sync_file_enter(inode);
/* if fdatasync is triggered, let's do in-place-update */
- if (datasync)
+ if (get_dirty_pages(inode) <= SM_I(sbi)->min_fsync_blocks)
set_inode_flag(fi, FI_NEED_IPU);
-
ret = filemap_write_and_wait_range(inode->i_mapping, start, end);
- if (datasync)
- clear_inode_flag(fi, FI_NEED_IPU);
+ clear_inode_flag(fi, FI_NEED_IPU);
+
if (ret) {
trace_f2fs_sync_file_exit(inode, need_cp, datasync, ret);
return ret;
* if there is no written data, don't waste time to write recovery info.
*/
if (!is_inode_flag_set(fi, FI_APPEND_WRITE) &&
- !exist_written_data(sbi, inode->i_ino, APPEND_INO)) {
+ !exist_written_data(sbi, ino, APPEND_INO)) {
+ struct page *i = find_get_page(NODE_MAPPING(sbi), ino);
+
+ /* But we need to avoid that there are some inode updates */
+ if ((i && PageDirty(i)) || need_inode_block_update(sbi, ino)) {
+ f2fs_put_page(i, 0);
+ goto go_write;
+ }
+ f2fs_put_page(i, 0);
+
if (is_inode_flag_set(fi, FI_UPDATE_WRITE) ||
- exist_written_data(sbi, inode->i_ino, UPDATE_INO))
+ exist_written_data(sbi, ino, UPDATE_INO))
goto flush_out;
goto out;
}
-
+go_write:
/* guarantee free sections for fsync */
f2fs_balance_fs(sbi);
up_write(&fi->i_sem);
}
} else {
- /* if there is no written node page, write its inode page */
- while (!sync_node_pages(sbi, inode->i_ino, &wbc)) {
- if (fsync_mark_done(sbi, inode->i_ino))
- goto out;
+sync_nodes:
+ sync_node_pages(sbi, ino, &wbc);
+
+ if (need_inode_block_update(sbi, ino)) {
mark_inode_dirty_sync(inode);
ret = f2fs_write_inode(inode, NULL);
if (ret)
goto out;
+ goto sync_nodes;
}
- ret = wait_on_node_pages_writeback(sbi, inode->i_ino);
+
+ ret = wait_on_node_pages_writeback(sbi, ino);
if (ret)
goto out;
/* once recovery info is written, don't need to tack this */
- remove_dirty_inode(sbi, inode->i_ino, APPEND_INO);
+ remove_dirty_inode(sbi, ino, APPEND_INO);
clear_inode_flag(fi, FI_APPEND_WRITE);
flush_out:
- remove_dirty_inode(sbi, inode->i_ino, UPDATE_INO);
+ remove_dirty_inode(sbi, ino, UPDATE_INO);
clear_inode_flag(fi, FI_UPDATE_WRITE);
- ret = f2fs_issue_flush(F2FS_SB(inode->i_sb));
+ ret = f2fs_issue_flush(F2FS_I_SB(inode));
}
out:
trace_f2fs_sync_file_exit(inode, need_cp, datasync, ret);
maxbytes, i_size_read(inode));
case SEEK_DATA:
case SEEK_HOLE:
+ if (offset < 0)
+ return -ENXIO;
return f2fs_seek_block(file, offset, whence);
}
int truncate_data_blocks_range(struct dnode_of_data *dn, int count)
{
int nr_free = 0, ofs = dn->ofs_in_node;
- struct f2fs_sb_info *sbi = F2FS_SB(dn->inode->i_sb);
+ struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
struct f2fs_node *raw_node;
__le32 *addr;
int truncate_blocks(struct inode *inode, u64 from, bool lock)
{
- struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+ struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
unsigned int blocksize = inode->i_sb->s_blocksize;
struct dnode_of_data dn;
pgoff_t free_from;
count = ADDRS_PER_PAGE(dn.node_page, F2FS_I(inode));
count -= dn.ofs_in_node;
- f2fs_bug_on(count < 0);
+ f2fs_bug_on(sbi, count < 0);
if (dn.ofs_in_node || IS_INODE(dn.node_page)) {
truncate_data_blocks_range(&dn, count);
if (err)
return err;
- if ((attr->ia_valid & ATTR_SIZE) &&
- attr->ia_size != i_size_read(inode)) {
+ if (attr->ia_valid & ATTR_SIZE) {
err = f2fs_convert_inline_data(inode, attr->ia_size, NULL);
if (err)
return err;
- truncate_setsize(inode, attr->ia_size);
- f2fs_truncate(inode);
- f2fs_balance_fs(F2FS_SB(inode->i_sb));
+ if (attr->ia_size != i_size_read(inode)) {
+ truncate_setsize(inode, attr->ia_size);
+ f2fs_truncate(inode);
+ f2fs_balance_fs(F2FS_I_SB(inode));
+ } else {
+ /*
+ * giving a chance to truncate blocks past EOF which
+ * are fallocated with FALLOC_FL_KEEP_SIZE.
+ */
+ f2fs_truncate(inode);
+ }
}
__setattr_copy(inode, attr);
static void fill_zero(struct inode *inode, pgoff_t index,
loff_t start, loff_t len)
{
- struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+ struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
struct page *page;
if (!len)
loff_t off_start, off_end;
int ret = 0;
+ if (!S_ISREG(inode->i_mode))
+ return -EOPNOTSUPP;
+
+ /* skip punching hole beyond i_size */
+ if (offset >= inode->i_size)
+ return ret;
+
ret = f2fs_convert_inline_data(inode, MAX_INLINE_DATA + 1, NULL);
if (ret)
return ret;
if (pg_start < pg_end) {
struct address_space *mapping = inode->i_mapping;
loff_t blk_start, blk_end;
- struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+ struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
f2fs_balance_fs(sbi);
static int expand_inode_data(struct inode *inode, loff_t offset,
loff_t len, int mode)
{
- struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+ struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
pgoff_t index, pg_start, pg_end;
loff_t new_size = i_size_read(inode);
loff_t off_start, off_end;
return flags & F2FS_OTHER_FLMASK;
}
-long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+static int f2fs_ioc_getflags(struct file *filp, unsigned long arg)
+{
+ struct inode *inode = file_inode(filp);
+ struct f2fs_inode_info *fi = F2FS_I(inode);
+ unsigned int flags = fi->i_flags & FS_FL_USER_VISIBLE;
+ return put_user(flags, (int __user *)arg);
+}
+
+static int f2fs_ioc_setflags(struct file *filp, unsigned long arg)
{
struct inode *inode = file_inode(filp);
struct f2fs_inode_info *fi = F2FS_I(inode);
- unsigned int flags;
+ unsigned int flags = fi->i_flags & FS_FL_USER_VISIBLE;
+ unsigned int oldflags;
int ret;
- switch (cmd) {
- case F2FS_IOC_GETFLAGS:
- flags = fi->i_flags & FS_FL_USER_VISIBLE;
- return put_user(flags, (int __user *) arg);
- case F2FS_IOC_SETFLAGS:
- {
- unsigned int oldflags;
+ ret = mnt_want_write_file(filp);
+ if (ret)
+ return ret;
- ret = mnt_want_write_file(filp);
- if (ret)
- return ret;
+ if (!inode_owner_or_capable(inode)) {
+ ret = -EACCES;
+ goto out;
+ }
- if (!inode_owner_or_capable(inode)) {
- ret = -EACCES;
- goto out;
- }
+ if (get_user(flags, (int __user *)arg)) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ flags = f2fs_mask_flags(inode->i_mode, flags);
+
+ mutex_lock(&inode->i_mutex);
- if (get_user(flags, (int __user *) arg)) {
- ret = -EFAULT;
+ oldflags = fi->i_flags;
+
+ if ((flags ^ oldflags) & (FS_APPEND_FL | FS_IMMUTABLE_FL)) {
+ if (!capable(CAP_LINUX_IMMUTABLE)) {
+ mutex_unlock(&inode->i_mutex);
+ ret = -EPERM;
goto out;
}
+ }
- flags = f2fs_mask_flags(inode->i_mode, flags);
+ flags = flags & FS_FL_USER_MODIFIABLE;
+ flags |= oldflags & ~FS_FL_USER_MODIFIABLE;
+ fi->i_flags = flags;
+ mutex_unlock(&inode->i_mutex);
- mutex_lock(&inode->i_mutex);
+ f2fs_set_inode_flags(inode);
+ inode->i_ctime = CURRENT_TIME;
+ mark_inode_dirty(inode);
+out:
+ mnt_drop_write_file(filp);
+ return ret;
+}
- oldflags = fi->i_flags;
+static int f2fs_ioc_start_atomic_write(struct file *filp)
+{
+ struct inode *inode = file_inode(filp);
+ struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
- if ((flags ^ oldflags) & (FS_APPEND_FL | FS_IMMUTABLE_FL)) {
- if (!capable(CAP_LINUX_IMMUTABLE)) {
- mutex_unlock(&inode->i_mutex);
- ret = -EPERM;
- goto out;
- }
- }
+ if (!inode_owner_or_capable(inode))
+ return -EACCES;
- flags = flags & FS_FL_USER_MODIFIABLE;
- flags |= oldflags & ~FS_FL_USER_MODIFIABLE;
- fi->i_flags = flags;
- mutex_unlock(&inode->i_mutex);
+ f2fs_balance_fs(sbi);
- f2fs_set_inode_flags(inode);
- inode->i_ctime = CURRENT_TIME;
- mark_inode_dirty(inode);
-out:
- mnt_drop_write_file(filp);
+ set_inode_flag(F2FS_I(inode), FI_ATOMIC_FILE);
+
+ return f2fs_convert_inline_data(inode, MAX_INLINE_DATA + 1, NULL);
+}
+
+static int f2fs_ioc_commit_atomic_write(struct file *filp)
+{
+ struct inode *inode = file_inode(filp);
+ int ret;
+
+ if (!inode_owner_or_capable(inode))
+ return -EACCES;
+
+ if (f2fs_is_volatile_file(inode))
+ return 0;
+
+ ret = mnt_want_write_file(filp);
+ if (ret)
return ret;
- }
+
+ if (f2fs_is_atomic_file(inode))
+ commit_inmem_pages(inode, false);
+
+ ret = f2fs_sync_file(filp, 0, LONG_MAX, 0);
+ mnt_drop_write_file(filp);
+ return ret;
+}
+
+static int f2fs_ioc_start_volatile_write(struct file *filp)
+{
+ struct inode *inode = file_inode(filp);
+
+ if (!inode_owner_or_capable(inode))
+ return -EACCES;
+
+ set_inode_flag(F2FS_I(inode), FI_VOLATILE_FILE);
+ return 0;
+}
+
+static int f2fs_ioc_fitrim(struct file *filp, unsigned long arg)
+{
+ struct inode *inode = file_inode(filp);
+ struct super_block *sb = inode->i_sb;
+ struct request_queue *q = bdev_get_queue(sb->s_bdev);
+ struct fstrim_range range;
+ int ret;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ if (!blk_queue_discard(q))
+ return -EOPNOTSUPP;
+
+ if (copy_from_user(&range, (struct fstrim_range __user *)arg,
+ sizeof(range)))
+ return -EFAULT;
+
+ range.minlen = max((unsigned int)range.minlen,
+ q->limits.discard_granularity);
+ ret = f2fs_trim_fs(F2FS_SB(sb), &range);
+ if (ret < 0)
+ return ret;
+
+ if (copy_to_user((struct fstrim_range __user *)arg, &range,
+ sizeof(range)))
+ return -EFAULT;
+ return 0;
+}
+
+long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+{
+ switch (cmd) {
+ case F2FS_IOC_GETFLAGS:
+ return f2fs_ioc_getflags(filp, arg);
+ case F2FS_IOC_SETFLAGS:
+ return f2fs_ioc_setflags(filp, arg);
+ case F2FS_IOC_START_ATOMIC_WRITE:
+ return f2fs_ioc_start_atomic_write(filp);
+ case F2FS_IOC_COMMIT_ATOMIC_WRITE:
+ return f2fs_ioc_commit_atomic_write(filp);
+ case F2FS_IOC_START_VOLATILE_WRITE:
+ return f2fs_ioc_start_volatile_write(filp);
+ case FITRIM:
+ return f2fs_ioc_fitrim(filp, arg);
default:
return -ENOTTY;
}
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